Toshiba RAS-25N4KVRG-ND Service Manual page 72

<How to remove the drain cap>
• Clip the drain cap by needle-nose pliers and
pull out.
Cap drain
Needle-nose pliers
<How to fix the drain cap>
• Insert hexagonal wrench (dia. 4 mm) in a
center head.
Fig. 10-3-15
• Firmly insert the drain cap.
Do not apply lubricating oil
(refrigerant machine oil)
when inserting the drain
cap. Application causes
deterioration and drain
leakage from the plug.
No gap
CAUTION
Firmly insert the drain hose and drain cap;
otherwise, water may leak.
<Left-hand connection with piping>
Bend the connecting pipe so that it is laid within 43
mm above the wall surface. If the connecting pipe
is laid exceeding 43 mm above the wall surface,
the indoor unit may unstably be set on the wall.
When bending the connecting pipe, make sure to
use a spring bender so as not to crush the pipe.
Bend the connecting pipe within a radius of 30 mm.
To connect the pipe after installation of the unit (figure)
330 mm
290 mm
Liquid side
Gas side
Cut pipe before welding
Front view
R 30 mm (Use polisin (polyethylene)
core or the like for bending pipe.)
Use the handle of screwdriver, etc.
Bottom view
Fig. 10-3-14
Hexagonal wrench
Insert a hexagon wrench
(4 mm).
Gas side
Liquid side
Indoor unit outline
Fig. 10-3-16
NOTE
If the pipe is bent incorrectly, the indoor unit may
unstably be set on the wall.
After passing the connecting pipe through the pipe
hole, connect the connecting pipe to the auxiliary pipes
and wrap the facing tape around them.
How to cutting pipe
• To connect piping to the left side, the indoor
unit pipes must be cut and connected by
brazing or welded to the auxiliary pipes.
• Cut the pipe with a pipe cutter.
Copper
pipe
CAUTION
• Bind the auxiliary pipes (two) power supply
and connecting cable with facing tape tightly.
Power supply and
connecting cable
Indoor unit
• Carefully arrange pipes so that any pipe does not
stick out of the rear plate of the indoor unit.
• Carefully connect the auxiliary pipes and
connecting pipes to each other and cut off the
insulating tape wound on the connecting pipe to
avoid double-taping at the joint, moreover, seal
the joint with the vinyl tape, etc.
Since dewing results in a machine trouble, make
•
sure to insulate both the connecting pipes.
(Use polyethylene foam as insulating material.)
• When bending a pipe, carefully do it, not to crush it.
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Obliquity Roughness
90º
Fig. 10-3-17
1
Installation plate
Auxiliary pipes
Warp